QFile::moveToTrash does nothing but returns true

void FileSystemOperationsTest::qtBugTest()
{
    // Simple test directory to write test file to.
    QDir testDir{"C:/Users/<username>/Desktop/"};

    // Create an empty test file with some contents.
    QString filename{"test.txt"};
    QFile file(testDir.absoluteFilePath(filename));
    QVERIFY2(file.open(QIODevice::ReadWrite), "Unable to open test file.");
    file.write("hello world");
    file.close();

    // Check that the file now exists.
    QFileInfo fileInfo{file};
    QVERIFY(fileInfo.exists());

    // Check that the file is not empty.
    qint64 originalSize{fileInfo.size()};
    QCOMPARE_NE(originalSize, 0);

    // Open the file with a different QFile <- This is important as it will work
    // if you open with the same QFile as moveToTrash closes the QFile internally.
    QFile file2(testDir.absoluteFilePath(filename));
    QVERIFY2(file2.open(QIODevice::ReadWrite), "Unable to open test file.");

    // Try to move the file to trash.
    bool suc = file.moveToTrash();
    Q_ASSERT(suc);                          // This is True
    Q_ASSERT(!file.fileName().isNull());    // But this fails and the file still exists.
}